期刊
ADVANCED ENGINEERING MATERIALS
卷 22, 期 4, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adem.201901197
关键词
computed tomography; convolutional neural networks; deep learning; metal matrix composites; segmentations
资金
- DFG [BR 5199/3-1]
The quantitative analysis of microstructural features is a key to understanding the micromechanical behavior of metal matrix composites (MMCs), which is a premise for their use in practice. Herein, a 3D microstructural characterization of a five-phase MMC is performed by synchrotron X-ray computed tomography (SXCT). A workflow for advanced deep learning-based segmentation of all individual phases in SXCT data is shown using a fully convolutional neural network with U-net architecture. High segmentation accuracy is achieved with a small amount of training data. This enables extracting unprecedently precise microstructural parameters (e.g., volume fractions and particle shapes) to be input, e.g., in micromechanical models.
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